Daniel Defense DD4 V7 SLW Rifle, 5.56 NATO, 14.5″ Barrel

Product Description

The Daniel Defense DD4 V7 SLW Rifle is a semi-automatic 5.56 NATO rifle built on a 14.5" Lightweight profile barrel with a 1:7 twist, a mid-length gas system on a low profile gas block, a Daniel Defense DD4 13.5 M-LOK rail, and a Dead Air Xeno flash hider pinned and welded to bring the permanent barrel length past the 16-inch rifle threshold.

Weight is the whole argument for this configuration. A Lightweight profile barrel removes steel from ahead of the gas block where it contributes little to accuracy in the strings most shooters actually fire, and the result is a carbine that points quickly and carries all day. Pair that with a 13.5-inch free-float M-LOK rail and the balance sits back toward the receiver — noticeably faster on transitions than a heavy-barrel rifle, at the cost of some sustained-fire tolerance.

Mid-length gas on a 14.5" barrel gives a longer dwell and lower port pressure than a carbine system, so the impulse is smoother and the rifle settles faster while the muzzle end stays light. And because the Xeno flash hider is pinned and welded, the assembly measures over 16 inches permanently: it is a rifle, with no NFA paperwork.

Key Facts

• Brand / Model: Daniel Defense DD4 V7 SLW
• Manufacturer Part Number: 02-201-05296-047  |  UPC: 818773024709
• Legal category: Rifle — no NFA paperwork
• Action: Semi-automatic  |  Caliber: 5.56mm NATO
• Barrel: 14.5", Lightweight profile, 1:7 twist
• Gas system: Mid-length, low profile gas block
• Muzzle device: Dead Air Xeno flash hider, pinned and welded (permanently attached)
• Rail: Daniel Defense DD4 13.5, M-LOK attachment, free floating
• Barrel construction (Daniel Defense AR-15 standard): Cold hammer forged Chrome Moly Vanadium steel, chrome lined, Mil-Spec heavy phosphate coated, HP/MPI tested
• Receivers (Daniel Defense standard): CNC machined 7075-T6 aluminium, Type III hard coat anodized
• Rail construction (Daniel Defense standard): CNC machined 6061-T6 aluminium, Type III hard coat anodized
• Bolt carrier group (Daniel Defense standard): M16 profile, Mil-Spec MP tested, chrome lined, properly staked gas key

The Xeno muzzle device

What sits on the end of the barrel is what separates this SKU from its siblings. Instead of a Daniel Defense flash suppressor it carries a Dead Air Xeno flash hider, pinned and welded in place — a deliberate choice for a buyer building toward a suppressed rifle who wants a factory-permanent device rather than a threaded muzzle. Because the device is permanent, what can be mounted to it is fixed. Call 817-393-4000 before you buy a suppressor so we can confirm exactly what this device accepts; a sibling SKU carries an ASR flash hider instead, a different mounting standard.

Lightweight or standard profile?

Choose the Lightweight profile if the rifle gets carried, if you shoot standing and moving, or if you are hanging a light, laser and optic on it and want to claw back the weight elsewhere. Choose a Government or S2W profile instead if you shoot long strings from support and want the barrel to stay indifferent to heat. Compare the Daniel Defense rifles side by side, look through the optics we carry, and see our suppressor selection if you are planning a suppressor for this one.

Ordering from Western Sport in Roanoke, TX

Western Sport in Roanoke, Texas is a Daniel Defense master dealer, licensed as an FFL and SOT since 2007, with a gunsmith on the premises. This rifle is serialized and has to be transferred through a licensed FFL — ours, or one convenient to you. Call 817-393-4000 and we will take care of it.

Frequently Asked Questions

Q: Why does this 14.5-inch rifle not need NFA paperwork?

A: The Dead Air Xeno flash hider is pinned and welded to the barrel, making barrel and device one permanent unit longer than 16 inches. That places the firearm in the ordinary rifle category rather than the NFA short-barrelled rifle category, so it transfers like any other rifle through an FFL.

Q: What does the Lightweight barrel profile give up?

A: Sustained-fire tolerance. Thinning the steel ahead of the gas block lowers weight and speeds up handling, but there is less mass to absorb heat, so a Lightweight barrel warms faster in long strings than a Government or S2W profile. For carry, patrol and general shooting the trade is usually worth it.

Q: Can I mount a suppressor to the Xeno flash hider on this rifle?

A: The device is permanently attached, so what you can mount is determined by that device rather than by the barrel threads. Call 817-393-4000 before buying a suppressor or mount and we will confirm precisely what this Xeno flash hider accepts on this SKU.

Q: How does mid-length gas behave on a 14.5-inch barrel?

A: Smoother than carbine gas. The port sits further from the chamber, so pressure at the port is lower and the carrier unlocks a fraction later, softening the impulse and reducing wear. It is one of the main reasons to pick a 14.5-inch mid-length over a 16-inch carbine build.

Q: What is the difference between this SKU and the ASR version?

A: The muzzle device. This one carries a pinned and welded Dead Air Xeno flash hider; the sibling SKU carries a pinned and welded ASR flash hider. Everything else in the configuration string matches. Which you want depends on the suppressor mounting standard you intend to run, so call us if you are unsure.

Q: Does the rifle ship to my door?

A: No. Firearms must be transferred through a licensed FFL. Western Sport is a licensed FFL and SOT in Roanoke, Texas and can complete the transfer in store, or ship the rifle to a dealer near you for pickup. Call 817-393-4000 to arrange it.

Additional information